mdadm: migrate cron.weekly to systemd.timer (#1244)

Add mdadm timer and service files and remove the unused weekly cron

sdk_container/src/third_party/coreos-overlay/sys-fs/mdadm/files/mdadm.service

@@ -0,0 +1,6 @@
+[Unit]
+Description=Initiates a check run of an MD array's redundancy information.
+
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/checkarray --cron --all --idle --quiet

sdk_container/src/third_party/coreos-overlay/sys-fs/mdadm/files/mdadm.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Weekly check for MD array's redundancy information.
+
+[Install]
+WantedBy=timers.target
+
+[Timer]
+OnCalendar=weekly
+Persistent=true

sdk_container/src/third_party/coreos-overlay/sys-fs/mdadm/files/mdadm.weekly

@@ -1,5 +0,0 @@
-#!/bin/sh
-# This requires that AUTOCHECK is true in /etc/default/mdadm
-if [ -x /usr/sbin/checkarray ] && [ $(date +\%d) -le 7 ]; then
-	/usr/sbin/checkarray --cron --all --idle --quiet
-fi

sdk_container/src/third_party/coreos-overlay/sys-fs/mdadm/mdadm-4.2-r1.ebuild

@@ -96,8 +96,10 @@ src_install() {
 	insinto /etc/default
 	newins "${FILESDIR}"/etc-default-mdadm mdadm
 
-	exeinto /etc/cron.weekly
+	systemd_dounit "${FILESDIR}"/mdadm.service
-	newexe "${FILESDIR}"/mdadm.weekly mdadm
+	systemd_dounit "${FILESDIR}"/mdadm.timer
+
+	systemd_enable_service timers.target mdadm.timer
 }
 
 pkg_postinst() {